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Understanding 9/11Signals : the telephone and beyond
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viii, 181 pages : 25 cm
Includes bibliographical references (page 177) and index
A grand dream in a real world -- The beginnings of telegraphy and telephony -- Theories of communication: Fourier to Shannon -- Modulation: encoding signals for transmission -- Multiplexing: many messages on one medium -- Electricity and light as waves: signals as physical phenomena -- Electric and electronic devices: the physics of communication systems -- Switching and signaling: the "brains" of communication -- Communication systems: networks and services -- Responding to challenges in communication
Includes bibliographical references (page 177) and index
A grand dream in a real world -- The beginnings of telegraphy and telephony -- Theories of communication: Fourier to Shannon -- Modulation: encoding signals for transmission -- Multiplexing: many messages on one medium -- Electricity and light as waves: signals as physical phenomena -- Electric and electronic devices: the physics of communication systems -- Switching and signaling: the "brains" of communication -- Communication systems: networks and services -- Responding to challenges in communication
![[WorldCat (this item)]](/images/worldcat-small.png "[WorldCat (this item)]")
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